Write chemical reactions to affect the following transformations:
(i) Butan-1-ol to butanoic acid
(ii) Benzyl alcohol to phenylethanoic acid
(iii) 3 Nitrobromobenzene to 3-nitrobenzoic acid
(iv) 4-Methylacetophenone to benzene-1,4-dicarboxylic acid
(v) Cyclohexene to hexane-1,6-dioic acid
(vi) Butanal to butanoic acid.

Explanation

(i). `underset("Butan-1-ol")(CH_(3)CH_(2)CH_(2)CH_(2)OH) underset("Jone's reagent")overset(CrO_(3)-H_(2)SO_(4))to underset("Butanoic acid")(CH_(3)CH_(2)CH_(2)COOH)`

(v).
(vi). `underset("Butanal")(CH_(3)CH_(2)CH_(2)CHO) underset(("Tollens' reagent"))overset([Ag(NH_(3))_(2)]^(+)OH^(-))to underset("Amm. butyrate")(CH_(3)CH_(2)CH_(2)COONH_(4)) underset(-NH_(4)Cl)overset("Dil. HCl")to underset("Butanoic acid")(CH_(3)CH_(2)CH_(2)COOH)`.